Unfortunately, the Crossfire option is not possible with this motherboard as it is not Crossfire certified.
The following model supports the Crossfire option and has two PCIe 4.0 x16 slots for graphics cards:
AsRock MB B650 Livemixer (AM5, AMD B650, ATX)
As far as the case is concerned, there is enough space for the graphics cards as their length is 281 mm while the case supports up to 370 mm.
The power supply needs to be improved as there are two GPUs and a powerful CPU installed.
Recommendation:
https://www.digitec.ch/fr...